2016
DOI: 10.1007/s40710-016-0176-9
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Impact of Heavy Metal Containing Wastewater on Agricultural Soil and Produce: Relevance of Biological Treatment

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Cited by 51 publications
(20 citation statements)
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“…In terms of the S S × H interaction effects ( Figure 2C,D), the DTPA-extractable Fe and Mn soil content in the top soil profile (H 1 ) increased from S S1 (3.26, 10.55 mg kg −1 , respectively) to S S3 (4.43, 15.32 mg kg −1 , respectively), indicating that these metals accumulated gradually in the top soil; no such effect was observed for the bottom soil profile (H 2 ). The accumulation of Fe and Mn in the top soil profile was related to the higher content of Fe and Mn in SWW and TWW (Figure 1), and to the low mobility of these heavy metals, especially in alkaline soils (pH~8) [38]. Moreover, combining this with the irrigation water demand of artichoke plants defined in terms of the active root depth (40-50 cm), the heavy metals that were present in the added SWW and TWW would be expected to accumulate specifically in the top soil profile.…”
Section: Heavy Metal Content Of Irrigation Watermentioning
confidence: 99%
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“…In terms of the S S × H interaction effects ( Figure 2C,D), the DTPA-extractable Fe and Mn soil content in the top soil profile (H 1 ) increased from S S1 (3.26, 10.55 mg kg −1 , respectively) to S S3 (4.43, 15.32 mg kg −1 , respectively), indicating that these metals accumulated gradually in the top soil; no such effect was observed for the bottom soil profile (H 2 ). The accumulation of Fe and Mn in the top soil profile was related to the higher content of Fe and Mn in SWW and TWW (Figure 1), and to the low mobility of these heavy metals, especially in alkaline soils (pH~8) [38]. Moreover, combining this with the irrigation water demand of artichoke plants defined in terms of the active root depth (40-50 cm), the heavy metals that were present in the added SWW and TWW would be expected to accumulate specifically in the top soil profile.…”
Section: Heavy Metal Content Of Irrigation Watermentioning
confidence: 99%
“…Indeed, high contents of heavy metals are normally found in industrial sewage effluent, whereas the concentrations of these metals in domestic wastewaters are generally low following the settling of solids during treatment [37]. However, heavy metal accumulation in the soil does not exclusively depend on the levels of heavy metals in treated wastewater; it also depends on the rate of irrigation and on the soil type [38]. Therefore, although the heavy metal levels in the irrigation wastewater used in this study are below the recommended thresholds, it remains important to evaluate the soil bioaccumulation of these metals over both the medium and long term.…”
Section: Heavy Metal Content Of Irrigation Watermentioning
confidence: 99%
“…1 However, the increasing demand for water from the energy and municipal industries in peri-urban and urban areas decreases the availability of fresh groundwater for agriculture. [2][3][4][5] A survey across different government agencies predicted a large increase in water demand by 2050 (in total 1447 km 3 ) by each sector, with the agricultural sector continuing to demonstrate the highest demand compared to other sectors. 6 At the same time, inequality in supply and demand is also projected due to multiple factors such as population explosion, urbanization and environmental (climate) changes, which can worsen the situation of freshwater availability.…”
Section: Introductionmentioning
confidence: 99%
“…10 Severe water stress at present and in the near future highlights the need for alternatives, such as wastewater, to fulfill irrigational requirements. 2 The use of municipal and industrial wastewater for irrigation whether untreated or treated, has been widely practiced in urban and peri-urban areas in India and many other countries. 11,12 Studies have reported the presence of beneficial nutrients in wastewater, but the volume of available wastewater is very low.…”
Section: Introductionmentioning
confidence: 99%
“…Contaminated wastewater primarily affects aquatic organisms including fishes and amphibians. Moreover, by using contaminated wastewater for irrigation, the quality of soil and crop products deteriorates as well as the microbial fauna of the soil .…”
Section: Introductionmentioning
confidence: 99%